What are the differences in the design and calculation steps between a heat exchanger with a pressure difference design and a conventional heat exchanger?
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I’m a complete novice when it comes to pressure vessels, and I have a small question for the experienced teachers and professionals here. What are the differences in the design and calculation procedures between heat exchangers with pressure difference design and ordinary heat exchangers? What aspects need to be taken into consideration during calculations? I would be extremely grateful if you could provide some guidance
The pressing difference for the connecting parts on both sides is designed separately, with the non-connecting parts being calculated individually. The drawings specify that the pressure difference during operation must not exceed the design value
This post was last edited by wiseboy on 2021-3-10 11:53 with the title “Heat exchangers with poor pressing design vs. ordinary heat exchanger designs” – what kind of nonsense is that? That heat exchanger design does not take pressure difference into account! ! ! Is what you call a “standard heat exchanger design” really a design at all? It’s nonsense.
This post was last edited by wiseboy on 2021-3-12 at 12:58. Pressure difference is first a requirement of process technology, and only secondly a matter of equipment strength. They are two different things. For example, if the flue gas pressure is 800 Pa and the operating pressure difference of your heat exchanger is 1000 Pa, the flue gas cannot pass through the heat exchanger properly. It’s useless no matter how high the pressure resistance of your heat exchanger is; it’s a process issue.
You can only proceed with design after the process permits it; how can you design if the process doesn’t allow it? Why design it? Play?